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Analog Devices Inc./Maxim Integrated MAX4541ESA
- Part No.:
- MAX4541ESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4541ESA.pdf
- Description:
- IC SWITCH SPST-NOX2 60OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,979
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Product details
Overview
The MAX4541ESA from Maxim Integrated is a precision dual single-pole/single-throw (SPST) analog switch with normally open (NO) configuration, designed for signal routing in low-voltage, single-supply systems. It operates from +2.7V to +12V, delivers 60Ω max on-resistance at +5V, 2Ω max RON matching between channels, 5pC max charge injection, and guarantees break-before-make switching only in SPDT variants (not applicable here). It is widely used in battery-powered instrumentation and audio/video signal path selection.
For engineers reviewing the MAX4541ESA datasheet, MAX4541ESA pinout, MAX4541ESA application, or MAX4541ESA equivalent, key selection criteria include its SO-8 package compatibility, -40°C to +85°C industrial temperature range, TTL/CMOS logic compatibility, low leakage (<10nA at +85°C), and guaranteed performance under single +5V or +3.3V supply conditions.
Technical Context
The MAX4541ESA implements two independent, bidirectional SPST switches with rail-to-rail analog signal handling (0V to V+), enabling flexible signal routing without polarity constraints. Its CMOS-based switch architecture ensures low power consumption (<5µW) and fast switching (tON = 35ns typ, tOFF = 25ns typ at +5V).
It features internal protection diodes and supports overvoltage-tolerant operation up to V+ + 0.3V on analog pins. Logic inputs are TTL-compatible at +5V and rail-to-rail compatible at other supplies, simplifying interface design with microcontrollers and FPGAs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +12V single supply - enables direct integration into 3.3V and 5V systems without level shifting |
| On-Resistance (RON) | 60Ω max at +5V - ensures minimal signal attenuation and distortion in precision analog paths |
| RON Matching | 2Ω max between channels - critical for matched gain/phase in differential or dual-path circuits |
| Charge Injection | 5pC max - reduces voltage glitch and settling error in sample-and-hold and multiplexed ADC front-ends |
| Leakage Current | 10nA max at +85°C - preserves accuracy in high-impedance sensor interfaces and battery-monitoring circuits |
| Switching Speed | tON = 35ns, tOFF = 25ns (typ at +5V) - supports >10MHz signal routing in test equipment and comms systems |
| ESD Protection | 2000V per Method 3015.7 - enhances robustness in handheld and field-deployable electronics |
Pinout & Package
MAX4541ESA is housed in an 8-pin SO (Small Outline) package, surface-mount, with standard 1.27mm pitch and JEDEC MS-012AC outline. Pin 1 is marked by a beveled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Accepts +2.7V to +12V; powers internal switch core and logic; must be applied before analog/logic signals |
| IN1 | Digital control input 1 | Active-high TTL/CMOS-compatible enable for first SPST switch; drives NO1–COM1 path |
| COM2 | Analog common terminal 2 | Bidirectional signal node for second SPST switch; connects to NO2 when IN2 = high |
| NC2 | Normally closed terminal 2 | Not internally connected - left unconnected; no functional role in MAX4541ESA |
| GND | Ground reference | Return path for supply and logic; must be low-impedance to minimize noise coupling into analog paths |
| IN2 | Digital control input 2 | Active-high enable for second SPST switch; controls NO2–COM2 conduction independently of IN1 |
| COM1 | Analog common terminal 1 | Bidirectional signal node for first SPST switch; connects to NO1 when IN1 = high |
| NO1 | Normally open terminal 1 | Signal output/input for first switch; forms closed path with COM1 only when IN1 is asserted |
Key Features
| Feature | Design Value |
|---|---|
| Dual SPST, NO configuration | Two independent, non-latching switches ideal for parallel signal routing or channel enable/disable |
| Low RON flatness (6Ω max) | Minimizes harmonic distortion and amplitude variation across full analog signal range (0V to V+) |
| TTL/CMOS logic compatibility | Eliminates need for external level shifters when interfacing with 3.3V/5V microcontrollers and logic families |
| Guaranteed low leakage | 10nA max at +85°C enables reliable operation in high-Z medical sensors and battery voltage monitors |
| Pin-compatible with MAX323/MAX324/MAX325 | Allows drop-in replacement in legacy designs without PCB revision or layout change |
Applications
| Battery-Powered Instrumentation | Audio Signal Routing |
|---|---|
Use Scenario: Portable multimeter front-end multiplexing analog inputs (voltage, current, resistance) onto a shared ADC channel. IC Role / Device Role / Timing Role: Dual SPST switch isolating and selecting individual sensor paths under MCU control; timing-critical for sequential sampling. Use Value: Low 5pC charge injection prevents baseline shift during channel switching, preserving measurement accuracy across ranges. |
Use Scenario: Selecting between line-in, microphone, or DAC output in a portable speaker system. IC Role / Device Role / Timing Role: Bidirectional analog switch routing audio signals with minimal crosstalk (-90dB) and THD preservation. Use Value: 60Ω max RON and 2Ω matching ensure consistent channel gain and phase response across stereo paths. |
| Medical Sensor Interfaces | Industrial Data Acquisition |
Use Scenario: Multiplexing ECG electrode leads into a low-noise instrumentation amplifier. IC Role / Device Role / Timing Role: High-isolation analog switch enabling lead-off detection and channel scanning without signal degradation. Use Value: 10nA max leakage at +85°C prevents DC offset drift in high-gain biopotential amplifiers. |
Use Scenario: Switching between multiple RTD or thermocouple inputs in a programmable logic controller (PLC) analog input module. IC Role / Device Role / Timing Role: Precision SPST switch providing low thermal EMF and stable RON over temperature for calibrated measurements. Use Value: RON flatness ≤6Ω ensures linear transfer function across full sensor voltage swing, reducing calibration burden. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4541EKA-T | SOT23-8 package, AA AE top mark, same electrical specs and -40°C to +85°C rating | Smaller footprint and thermal performance suited for space-constrained portable devices | Select when board area is limited and reflow-compatible SMT assembly is required |
| MAX323ESA | Higher RON (100Ω max), slower switching (tON/tOFF ≈ 150ns), same SO-8 package and pinout | Legacy part with relaxed performance; suitable where speed and on-resistance are non-critical | Choose for cost-sensitive, lower-performance replacements where existing layout reuse is mandatory |
Compared with MAX4541EKA-T, the MAX4541ESA offers identical electrical behavior but in a larger SO-8 package for easier prototyping and thermal management; versus MAX323ESA, it delivers significantly faster switching and lower RON, making it preferable for precision, high-speed signal routing.
Availability
MAX4541ESA is available at Aetrix Electronics and suitable for battery-operated instrumentation, audio signal routing, and industrial data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4541ESA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX4541–MAX4544 family was designed specifically for low-voltage, single-supply analog switching in portable and precision systems-emphasizing low power, low distortion, and robust signal integrity across wide temperature and supply ranges.
FAQ
What is the maximum supply voltage for MAX4541ESA?
The MAX4541ESA supports a maximum supply voltage of +12V, with absolute maximum ratings specifying V+ up to +13V. Operation beyond +12V is not recommended, as electrical characteristics are only guaranteed within the +2.7V to +12V range. Exceeding this may impact reliability or cause permanent damage per the device's absolute maximum ratings table.
Does MAX4541ESA support rail-to-rail analog signal switching?
Yes, the MAX4541ESA supports rail-to-rail analog signal switching from GND to V+. Its analog signal range is specified as 0V to V+, and typical operating characteristics confirm minimal RON variation across that full range. This enables accurate switching of signals such as DAC outputs or sensor voltages without clipping or distortion.
Is MAX4541ESA pin-compatible with older Maxim analog switches?
Yes, the MAX4541ESA is pin-compatible with the MAX323, MAX324, and MAX325 families in the SO-8 package. Pin assignments for V+, IN1, COM2, NC2, GND, IN2, COM1, and NO1 match exactly, allowing direct substitution in existing layouts without modification-provided the improved performance parameters (e.g., lower RON, faster switching) are acceptable.
What is the logic polarity of the control inputs on MAX4541ESA?
The MAX4541ESA uses active-high logic: IN1 and IN2 must be driven to a logic high (≥2.4V at +5V supply) to close the respective NO–COM switch path. When the input is low (≤0.8V), the switch remains open. The device does not invert logic; truth tables in the datasheet confirm "1" = ON for both channels.
Can MAX4541ESA be used in a +3.3V system?
Yes, the MAX4541ESA is fully specified for +3.3V operation (V+ = +3.0V to +3.6V). At +3.3V, it delivers RON ≤125Ω, tON ≤400ns, and maintains TTL/CMOS compatibility with logic high ≥2.4V. All key parameters-including leakage, charge injection, and isolation-are guaranteed across the full -40°C to +85°C range at this supply.
MAX4541ESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 60Ohm
- Channel-to-Channel Matching (ΔRon):
- 800mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 100ns, 75ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4541ESA FAQ
1.How can I place an order for MAX4541ESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4541ESA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX4541ESA reliable?
The price and inventory of MAX4541ESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4541ESA is usually 5 days.
3.What payment methods are accepted for MAX4541ESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4541ESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4541ESA?
MAX4541ESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4541ESA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX4541ESA?
For technical support, including MAX4541ESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4541ESA requirements.
6.How does Aetrix verify that MAX4541ESA is sourced from the original manufacturer or authorized distributors?
All MAX4541ESA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX4541ESA meets industry standards.
7.What is the process for return or replacement of MAX4541ESA?
All MAX4541ESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4541ESA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX4541ESA part is unused and in its original packaging.
Return procedure for MAX4541ESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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